Patents by Inventor Leo K. Tongish

Leo K. Tongish has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Sink
    Patent number: D244030
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: April 12, 1977
    Inventor: Leo K. Tongish
  • Combined sink and light box
    Patent number: D246315
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: November 8, 1977
    Inventor: Leo K. Tongish